Added help message for gem i webrick in gem server command

ruby · Dec 10, 2020 · 4ccc662 · 4ccc662
1 parent b084f8a
commit 4ccc662
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/lib/rubygems/server.rb b/lib/rubygems/server.rb
@@ -1,5 +1,4 @@
 # frozen_string_literal: true
-require 'webrick'
 require 'zlib'
 require 'erb'
 require 'uri'
@@ -424,6 +423,13 @@ class Gem::Server
   ERB
 
   def self.run(options)
+    begin
+      require 'webrick'
+    rescue LoadError
+      puts "webrick is not found. You may need to `gem install webrick` to install webrick."
+      exit
+    end
+
     new(options[:gemdir], options[:port], options[:daemon],
         options[:launch], options[:addresses]).run
   end